How to Calculate Percentage - PowerPoint PPT Presentation

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How to Calculate Percentage

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Find the percentage of the marks, divide the marks obtained in the examination with the maximum marks and multiply the result with 100. – PowerPoint PPT presentation

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Title: How to Calculate Percentage


1
How to Calculate the Percentage of Marks Through
Percentage Formula
2
How to Calculate Percentage
  • Understanding how percentage calculation works is
    not only for kids who are preparing to pass their
    next exams. To know how to calculate the
    percentage is also for someone who is going to a
    restaurant and trying to figure out how much the
    bill is. Or the one who is shopping and thinking
    about how much will be 25 off. Or the one who is
    trying to cut down his expense by 5 and trying
    to find how much he is going to spend.

3
  • Everyone needs to know this! We know that we can
    calculate these things easily with the help of a
    calculator. But what if you dont have it or you
    are not allowed to use it? Do you know that you
    dont need a calculator most of the time to do
    these simple calculations? All you need to do is
    use your brain a little bit, a very easy
    percentage formula and you will arrive at the
    answer in no time.
  • Read this article to find out how to calculate
    the percentage. We will teach you from basics and
    we will use examples. So, if you are new to this
    then dont worry, we will explain everything.
    After reading this article, you will feel
    confident about solving any percentage problem.
    You will also learn about Percentage Tips And
    Tricks that you can use in your daily lives.

4
Percentage Formula
  • Now, to calculate the percentage we have to know
    its formula. The formula to calculate percentage
    is equal to the ratio of the actual value to the
    total value multiplied by 100. The percentage
    formula is
  • Percentage, (Value 100) / Total Value
  • Let us understand this concept and formula with
    the help of an illustrative example given below
  • Example A circle is given below with 10
    divisions and few parts are shaded. Calculate the
    percentage of shaded parts in the circle.

5
Solution
  • Total number of divisions in the circle 10
  • Number of shaded parts 2
  • We know that,
  • Percentage, (Value 100) / Total Value
  • Thus, the percentage of the shaded part of the
    circle (Number of shaded divisions)/ (Total
    number of divisions) 100
  • (2/10) 100
  • 20

6
How Do You Calculate Average Marks?
  • The average test score obtained is the sum of all
    the scores divided by the number of test-takers.
  • For example suppose 3 students took a test and
    received scores of 69, 87, and 92,
  • Solution
  • Average marks (698792 ) / 3
  • 248/ 3
  • 82.66

7
What is the Difference Between Percentage
Fraction?
  • Percentage and fractions are very closely related
    but have a major difference. A fraction is when a
    2 units are divided and a resultant represents a
    part of the whole. Meanwhile, percentage is when
    the fraction is multiplied by 100.
  • Example percentage of marks scored in maths 39/
    50100
  • 0.78
  • 39/50 is a fraction whose resultant is 0.78 which
    is a part of the whole.
  • When we multiply this 0.78 by 100 we get 78 .

8
How To Calculate Percentage Error?
  • Percentage Error is the difference between
    approximate (or observed) value and exact (or
    actual value) as a percentage of actual value. It
    is used for purposes like to check manufacturing
    or calibration errors in measuring instruments.\
  • Percentage Error (Approximate or Observed
    Value Exact or Actual Value) / Exact or Actual
    Value x 100
  • Read More - How to Calculate Percentage
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